CN110848887A - Air conditioner and control method and device thereof - Google Patents

Air conditioner and control method and device thereof Download PDF

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Publication number
CN110848887A
CN110848887A CN201911206762.6A CN201911206762A CN110848887A CN 110848887 A CN110848887 A CN 110848887A CN 201911206762 A CN201911206762 A CN 201911206762A CN 110848887 A CN110848887 A CN 110848887A
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China
Prior art keywords
temperature
fan
area
air conditioner
rotating speed
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Pending
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CN201911206762.6A
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Chinese (zh)
Inventor
马阅新
吴君
魏留柱
陈新
曹磊
邵艳坡
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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Priority to CN201911206762.6A priority Critical patent/CN110848887A/en
Publication of CN110848887A publication Critical patent/CN110848887A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application discloses an air conditioner and a control method and a control device thereof, wherein the method comprises the following steps: recognizing that the air conditioner is in a cooling operation; respectively acquiring a first temperature of a first area and a second temperature of a second area on an evaporator, and recognizing that an absolute temperature difference between the first temperature and the second temperature is greater than a first preset difference; and identifying a lower temperature area in the first temperature and the second temperature, taking the fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated. According to the method, when the air conditioner is in a refrigeration running state, if a lower-temperature area exists on the evaporator, the rotating speed of the fan corresponding to the lower-temperature area is increased, so that the lower-temperature area can absorb more heat, the temperature of the lower-temperature area is increased, the risk of continuously reducing the temperature of the lower-temperature area is reduced, the phenomenon that the evaporator is frosted is avoided, and the evaporator can be continuously in a better working state.

Description

Air conditioner and control method and device thereof
Technical Field
The application relates to the technical field of household appliances, in particular to an air conditioner and a control method and device thereof.
Background
At present, the air conditioner is closely related to the life of people, and the life quality of people is greatly improved. However, when the air conditioner is operated in the cooling mode, frost is often easily formed on an evaporator in an indoor unit of the air conditioner, thereby reducing the cooling effect. Therefore, how to avoid frosting of the evaporator in the indoor unit when the air conditioner is cooling is a technical problem that needs to be solved at present.
Disclosure of Invention
The present application is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, a first objective of the present application is to provide a control method of an air conditioner, when the air conditioner is in a cooling operation state, if a lower temperature region is identified on an evaporator, the rotation speed of a fan corresponding to the lower temperature region is increased, so that the lower temperature region can absorb more heat, thereby increasing the temperature of the lower temperature region, reducing the risk of continuously decreasing the temperature of the lower temperature region, and further avoiding the occurrence of frosting of the evaporator.
A second object of the present application is to provide a control apparatus for an air conditioner.
A third object of the present application is to provide an air conditioner.
A fourth object of the present application is to provide an electronic device.
A fifth object of the present application is to propose a computer-readable storage medium.
An embodiment of a first aspect of the present application provides a control method of an air conditioner, where the air conditioner includes an evaporator, a first fan and a second fan, the first fan corresponds to a first area on the evaporator, and the second fan corresponds to a second area on the evaporator;
the method comprises the following steps:
recognizing that the air conditioner is in a cooling operation;
respectively acquiring a first temperature of the first area and a second temperature of the second area, and recognizing that an absolute temperature difference value between the first temperature and the second temperature is greater than a first preset difference value;
and identifying a lower temperature area in the first temperature and the second temperature, taking a fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated.
According to an embodiment of the application, the increasing the rotation speed of the fan to be adjusted comprises:
and increasing the rotating speed of the fan to be regulated according to a preset frequency.
According to an embodiment of the application, the increasing the rotating speed of the fan to be adjusted according to the preset frequency comprises:
and controlling the rotating speed of the fan to be regulated to increase a preset step length, and operating for a first preset time according to the increased rotating speed.
According to an embodiment of the application, the increasing the rotation speed of the fan to be adjusted comprises:
acquiring identification times for identifying that the absolute temperature difference is greater than the first preset difference;
and determining the target rotating speed of the fan to be regulated according to the current rotating speed of the fan to be regulated and the identification times, wherein the target rotating speed is greater than the current rotating speed.
According to an embodiment of the present application, further comprising:
identifying that the absolute temperature difference is less than or equal to the first preset difference;
and controlling the first fan and the second fan to operate for a second preset time according to the current rotating speed, and returning to the step of identifying the first temperature and the second temperature.
According to an embodiment of the present application, the first area is located at an upper portion of the evaporator, the second area is located at a lower portion of the evaporator, the first fan is an axial flow fan, and the second fan is a centrifugal fan.
According to an embodiment of the present application, further comprising:
and recognizing that the air conditioner is in heating operation, and increasing the rotating speed of a fan corresponding to a higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of a fan corresponding to a lower temperature area in the first temperature and the second temperature.
The embodiment of the second aspect of the present application further provides a control device of an air conditioner, the air conditioner includes an evaporator, a first fan and a second fan, the first fan corresponds to a first area on the evaporator, and the second fan corresponds to a second area on the evaporator;
the device comprises:
the identification module is used for identifying that the air conditioner is in refrigerating operation;
the acquisition module is used for respectively acquiring a first temperature of the first area and a second temperature of the second area and recognizing that an absolute temperature difference value between the first temperature and the second temperature is greater than a first preset difference value;
and the control module is used for identifying a lower temperature area in the first temperature and the second temperature, taking the fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated.
According to an embodiment of the present application, the control module is further configured to:
and increasing the rotating speed of the fan to be regulated according to a preset frequency.
According to an embodiment of the present application, the control module is further configured to:
and controlling the rotating speed of the fan to be regulated to increase a preset step length, and operating for a first preset time according to the increased rotating speed.
According to an embodiment of the present application, the control module is further configured to:
acquiring identification times for identifying that the absolute temperature difference is greater than the first preset difference;
and determining the target rotating speed of the fan to be regulated according to the current rotating speed of the fan to be regulated and the identification times, wherein the target rotating speed is greater than the current rotating speed.
According to an embodiment of the present application, the control module is further configured to:
identifying that the absolute temperature difference is less than or equal to the first preset difference;
and controlling the first fan and the second fan to operate for a second preset time according to the current rotating speed, and returning to the step of identifying the first temperature and the second temperature.
According to an embodiment of the present application, the first area is located at an upper portion of the evaporator, the second area is located at a lower portion of the evaporator, the first fan is an axial flow fan, and the second fan is a centrifugal fan.
According to an embodiment of the present application, the control module is further configured to:
and recognizing that the air conditioner is in heating operation, and increasing the rotating speed of a fan corresponding to a higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of a fan corresponding to a lower temperature area in the first temperature and the second temperature.
The embodiment of the present application further provides an air conditioner, including: the control device of the air conditioner as described in the above embodiments.
The embodiment of the application also provides an electronic device, which comprises a memory and a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the control method of the air conditioner described in the above embodiments.
Embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored, which, when executed by a processor, implements the control method of the air conditioner described in the above embodiments.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. when the air conditioner is in a refrigeration running state, if a lower-temperature area exists on the evaporator, the rotating speed of a fan corresponding to the lower-temperature area is increased, so that the lower-temperature area can absorb more heat, the temperature of the lower-temperature area is increased, the risk of continuously reducing the temperature of the lower-temperature area is reduced, the phenomenon that the evaporator is frosted is avoided, and the evaporator can be continuously in a better working state.
2. The rotating speed of the fan to be adjusted is increased according to the preset frequency, so that the rotating speed of the fan can be stably changed, and the stability of the air conditioner is improved.
3. When the air conditioner is in a heating operation state, when the temperature difference between the first area and the second area on the evaporator is large, the rotating speed of the fan is changed, so that the air outlet temperature of the air conditioner is relatively uniform, and the comfort level of an indoor environment is improved.
Drawings
FIG. 1 is a schematic diagram of an air conditioner according to an embodiment of the present disclosure;
FIG. 2 is a flow chart illustrating a method for controlling an air conditioner according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating a step of determining a target rotational speed of a blower to be adjusted according to a recognition number of times that a recognition absolute temperature difference is greater than a first preset difference value in a control method of an air conditioner according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram illustrating a step of adjusting a rotation speed of a fan in an air conditioner according to a first temperature and a second temperature in a control method of the air conditioner according to an embodiment of the disclosure;
fig. 5 is a control flow diagram illustrating a control method of an air conditioner according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a control device of an air conditioner according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the present invention and should not be construed as limiting the present application.
An air conditioner and a control method and apparatus thereof according to an embodiment of the present application are described below with reference to the accompanying drawings.
As shown in fig. 1, in the present embodiment, the air conditioner includes an indoor unit 100, and the indoor unit 100 includes an evaporator 11, a first fan 12, and a second fan 13. A first region 111 and a second region 112 are divided in the evaporator 11; the first fan 12 corresponds to a first area 111 on the evaporator 11, and the second fan 13 corresponds to a second area 112 on the evaporator 11.
Alternatively, the first zone 111 is a zone where an upper coil of the evaporator 11 is located (i.e., an upper portion of the evaporator), and the second zone 112 is a zone where a lower coil of the evaporator 11 is located (i.e., a lower portion of the evaporator).
Optionally, the first fan 12 is an axial fan, and the second fan 13 is a centrifugal fan. The first fan 12 may, but is not limited to, share one air outlet with the second fan 13.
Fig. 2 is a flowchart illustrating a method for controlling an air conditioner according to an embodiment of the present disclosure. As shown in fig. 2, the method for controlling an air conditioner according to the embodiment of the present application specifically includes the following steps:
and S101, identifying that the air conditioner is in cooling operation.
Generally, when the air conditioner is in a cooling mode, the current indoor temperature is often higher than the set temperature of the air conditioner, and therefore, whether the air conditioner is in a cooling operation state can be determined according to the magnitude between the indoor temperature and the set temperature. Wherein, the current indoor temperature can be detected by but not limited to an indoor temperature sensor; and the set temperature can be determined according to the acquired temperature adjusting instruction issued by the user.
In addition, in the running process of the air conditioner, whether the air conditioner is in a cooling running state or not can be determined according to a mode switching instruction issued by a user last time. For example, if the mode switching command issued last time by the user is to switch to the cooling mode, it may be determined that the air conditioner is in the cooling operation state.
S102, respectively acquiring a first temperature of the first area and a second temperature of the second area.
In general, temperature sensors are disposed in both the first area and the second area, and a first temperature of the first area may be acquired using the temperature sensor at the first area, and a second temperature of the second area may be acquired using the temperature sensor at the second area.
Optionally, in order to improve the control accuracy, an average value of the temperatures of the first region acquired within the preset time is used as the first temperature, and an average value of the temperatures of the second region acquired within the preset time is used as the second temperature.
S103, identifying that the absolute temperature difference between the first temperature and the second temperature is larger than a first preset difference.
Specifically, a first temperature and a second temperature are obtained, and the first temperature and the second temperature are subjected to mathematical operation to obtain an absolute temperature difference between the first temperature and the second temperature. Then, the calculated absolute temperature difference is compared with a first preset difference, and whether the absolute temperature difference is larger than the first preset temperature difference or not can be identified.
And S104, identifying a lower temperature area in the first temperature and the second temperature, taking the fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated.
Specifically, when the absolute temperature difference is greater than a first preset temperature difference, it indicates that the temperature difference between the two areas is large, and the evaporator has a risk of working abnormity; and the temperature of one of the areas is too low, if no adjustment is made, the temperature of the area is in danger of being reduced continuously, and when the temperature of the area is low to a certain degree, the frosting phenomenon occurs in the area, and the efficiency of the air conditioner is further reduced. Therefore, in order to enable the evaporator to be in a better working state so as to avoid the frosting phenomenon, in the embodiment, when the absolute temperature difference is determined to be greater than the first preset temperature difference, the first temperature and the second temperature are compared so as to determine a lower temperature area between the first temperature and the second temperature; then, the fan corresponding to the lower temperature area is used as the fan to be adjusted, the rotating speed of the fan to be adjusted is increased, the air circulation of an air channel where the fan to be adjusted is located is promoted, air with relatively high indoor temperature can flow through the lower temperature area in a large quantity, the lower temperature area on the evaporator can absorb more heat, the temperature of the lower temperature area is increased, the absolute temperature difference value of the two areas is smaller than or equal to the first preset temperature difference value, the evaporator is in a better working state, and the risk of frosting is reduced.
Further, when the absolute temperature difference is identified to be smaller than or equal to the first preset temperature difference, the temperatures of the two areas are similar, and the evaporator is not in risk of abnormal operation, so that the first fan corresponding to the first area and the second fan corresponding to the second area can be controlled to operate according to the current rotating speed. In addition, after the two fans operate for the second preset time according to the current rotating speed, the temperatures of the first area and the second area can be identified again, and the two fans are controlled according to the identification result, so that the purpose of continuous monitoring is achieved, and the risk of abnormal work of the evaporator is reduced.
In some embodiments, in order to stably increase the rotation speed of the fan to be adjusted, the rotation speed of the fan to be adjusted may be increased according to a preset frequency when the rotation speed of the fan to be adjusted is increased under the condition that the rotation speed of the fan to be adjusted is increased suddenly.
Further, when the rotating speed of the fan to be adjusted is increased according to the preset frequency, the rotating speed of the fan to be adjusted can be controlled to increase the preset step length, and the fan to be adjusted runs for a first preset time according to the increased rotating speed.
In some embodiments, when the rotating speed of the fan to be adjusted is increased, the target rotating speed of the fan to be adjusted can be determined according to the identification times that the identified absolute temperature difference is greater than the first preset difference value, so that the rotating speed of the fan to be adjusted can be stably increased. As shown in fig. 3, the method comprises the following steps:
s201, acquiring the identification times of the identification absolute temperature difference value larger than a first preset difference value.
Specifically, when the magnitude between the absolute temperature difference value and the first preset difference value is identified, if the absolute temperature difference value is identified to be greater than the first preset difference value, the number of times of identification is increased once; and if the absolute temperature difference is smaller than or equal to a first preset difference, clearing the identification times.
S202, determining a target rotating speed of the fan to be adjusted according to the current rotating speed and the identification times of the fan to be adjusted, wherein the target rotating speed is greater than the current rotating speed.
Specifically, the current rotating speed of the fan to be adjusted may be obtained by using a rotating speed sensor, and after the current rotating speed of the fan to be adjusted is obtained, the target rotating speed of the fan to be adjusted is determined according to the current rotating speed and the identification times of the fan to be adjusted, where the target rotating speed is greater than the current rotating speed.
Alternatively, the target rotation speed may be the current rotation speed added to the number of identifications. That is, nTarget＝nAt present+ i wherein nTargetIs a target rotational speed, nAt presentI is the current rotation speed and the identification number.
Optionally, when the target rotation speed is determined, a preset rotation speed compensation coefficient may be obtained first, then a product between the identification number and the rotation speed compensation coefficient is obtained, and then the current rotation speed and the obtained product are added to obtain the target rotation speed. That is, nTarget＝nAt present+ i e, wherein nTargetIs a target rotational speed, nAt presentFor the current speed, i is the number of identificationsAnd e is a rotation speed compensation coefficient.
In some embodiments, when the air conditioner is in a heating operation state, in order to enable the air conditioner to rapidly raise the indoor temperature and to enable the outlet air temperature of the air conditioner to be uniform, the rotating speed of a fan in the air conditioner can be adjusted according to the first temperature and the second temperature. As shown in fig. 4, the method comprises the following steps:
and S301, identifying that the air conditioner is in heating operation.
Generally, when the air conditioner is in a heating mode, the current indoor temperature is often lower than the set temperature of the air conditioner, and therefore, whether the air conditioner is in a heating operation state can be determined according to the magnitude between the indoor temperature and the set temperature. Wherein, the current indoor temperature can be detected by but not limited to an indoor temperature sensor; and the set temperature can be determined according to the acquired temperature adjusting instruction issued by the user.
In addition, in the operation process of the air conditioner, whether the air conditioner is in the heating operation state can be determined according to the mode switching instruction issued by the user last time. For example, if the mode switching command issued last time by the user is to switch to the heating mode, it may be determined that the air conditioner is in the heating operation state.
S302, respectively acquiring a first temperature of the first area and a second temperature of the second area.
In general, temperature sensors are disposed in both the first area and the second area, and a first temperature of the first area may be acquired using the temperature sensor at the first area, and a second temperature of the second area may be acquired using the temperature sensor at the second area.
And S303, identifying that the absolute temperature difference between the first temperature and the second temperature is greater than a second preset difference.
Specifically, a first temperature and a second temperature are obtained, and the first temperature and the second temperature are subjected to mathematical operation to obtain an absolute temperature difference between the first temperature and the second temperature. Then, the calculated absolute temperature difference value is compared with a second preset difference value, and whether the absolute temperature difference value is larger than the second preset temperature difference value or not can be identified. The first preset difference may be the same as or different from the second preset difference, and may be determined according to actual conditions, which is not limited herein.
S304, increasing the rotating speed of the fan corresponding to the higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of the fan corresponding to the lower temperature area in the first temperature and the second temperature.
Specifically, when the absolute temperature difference between the first temperature and the second temperature is greater than the second preset difference, it indicates that the temperature difference between the first area and the second area is large, and the temperature difference between the temperatures of the air passing through the two areas is also large. At this time, when the air outlets corresponding to the two fans are different, the air outlet temperature of the air outlet of the air conditioner is uneven, and the comfort level of the indoor environment is affected; when the two fans share one air outlet, the air temperature of the mixed air with different temperatures is lower than the expected temperature of a user, so that the running time of the air conditioner needs to be prolonged, the energy consumption of the air conditioner is increased, and the efficiency of the air conditioner is reduced. Therefore, in this embodiment, in order to make the outlet air temperatures of different outlets of the air conditioner uniform, the rotation speeds of the fans corresponding to the higher temperature regions in the first temperature and the second temperature may be increased, so that a large amount of air at a lower temperature passes through the higher temperature regions in the room, and then the temperature of the higher temperature regions is reduced, or the rotation speeds of the fans corresponding to the lower temperature regions in the first temperature and the second temperature are reduced, so that a small amount of air at a lower temperature passes through the higher temperature regions in the room, and then the temperature of the lower temperature regions is increased. In order to avoid the temperature of the mixed air being lower than the desired temperature of the user, the rotation speed of the fan corresponding to the lower temperature area of the first temperature and the second temperature can be reduced to increase the temperature of the lower temperature area.
For convenience of understanding, the control flow of the control method of the air conditioner provided in the present embodiment will be briefly described below. As shown in fig. 5, the method comprises the following steps:
and S401, controlling the air conditioner to automatically run.
S402, acquiring the current indoor temperature and the set temperature of the air conditioner.
And S403, judging the magnitude between the indoor temperature and the set temperature. If the indoor temperature is greater than the set temperature, executing steps S404-S408; otherwise, if the indoor temperature is less than the set temperature, steps S409-S413 are performed.
And S404, identifying that the air conditioner is in cooling operation.
S405, acquiring a first temperature of a first area and a second temperature of a second area on the evaporator.
And S406, judging that the absolute temperature difference between the first temperature and the second temperature is larger than the first preset difference. If the absolute temperature difference is greater than the first preset difference, executing step S407; otherwise, step S408 is executed.
And S407, taking the fan corresponding to the lower-temperature area as a fan to be regulated, increasing the rotating speed of the fan to be regulated, and returning to execute the step S402.
And S408, controlling the fan in the air conditioner to operate according to the current rotating speed, and returning to execute the step S402.
And S409, identifying that the air conditioner is in heating operation.
And S410, acquiring a first temperature of a first area and a second temperature of a second area on the evaporator.
S411, judging that the absolute temperature difference between the first temperature and the second temperature is larger than the second preset difference. If the absolute temperature difference is greater than the second preset difference, performing step S412; otherwise, step S413 is executed.
S412, increasing the rotating speed of the fan corresponding to the higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of the fan corresponding to the lower temperature area in the first temperature and the second temperature, and returning to execute the step S402.
And S413, controlling a fan in the air conditioner to operate according to the current rotating speed, and returning to execute the step S402.
To sum up, the technical solution in the embodiment of the present application at least has the following technical effects or advantages:
1. when the air conditioner is in a refrigeration running state, if a lower-temperature area exists on the evaporator, the rotating speed of a fan corresponding to the lower-temperature area is increased, so that the lower-temperature area can absorb more heat, the temperature of the lower-temperature area is increased, the risk of continuously reducing the temperature of the lower-temperature area is reduced, the phenomenon that the evaporator is frosted is avoided, and the evaporator can be continuously in a better working state.
2. The rotating speed of the fan to be adjusted is increased according to the preset frequency, so that the rotating speed of the fan can be stably changed, and the stability of the air conditioner is improved.
3. When the air conditioner is in a heating operation state, when the temperature difference between the first area and the second area on the evaporator is large, the rotating speed of the fan is changed, so that the air outlet temperature of the air conditioner is relatively uniform, and the comfort level of an indoor environment is improved.
Based on the same inventive concept, the embodiment of the application also provides a device corresponding to the method in the embodiment.
Fig. 6 is a schematic structural diagram of a control device of an air conditioner according to an embodiment disclosed in the present application. Wherein, including evaporimeter, first fan and second fan in the air conditioner, first fan corresponds with the first region on the evaporimeter, and the second fan corresponds with the second region on the evaporimeter, as shown in fig. 6, the controlling means 200 of air conditioner includes:
the identification module 21 is used for identifying that the air conditioner is in refrigerating operation;
an obtaining module 22, configured to obtain a first temperature of the first area and a second temperature of the second area, respectively, and recognize that an absolute temperature difference between the first temperature and the second temperature is greater than a first preset difference;
and the control module 23 is configured to identify a lower temperature region in the first temperature and the second temperature, use the fan corresponding to the lower temperature region as the fan to be adjusted, and increase the rotation speed of the fan to be adjusted.
Further, the control module 23 is further configured to:
and increasing the rotating speed of the fan to be regulated according to the preset frequency.
Further, the control module 23 is further configured to:
and controlling the rotating speed of the fan to be regulated to increase a preset step length, and operating for a first preset time according to the increased rotating speed.
Further, the control module 23 is further configured to:
acquiring the identification times that the identification absolute temperature difference is greater than a first preset difference;
and determining the target rotating speed of the fan to be regulated according to the current rotating speed and the identification times of the fan to be regulated, wherein the target rotating speed is greater than the current rotating speed.
Further, the control module 23 is further configured to:
identifying that the absolute temperature difference is less than or equal to a first preset difference;
and controlling the first fan and the second fan to operate for a second preset time according to the current rotating speed, and returning to the step of identifying the first temperature and the second temperature.
Furthermore, the first area is located at the upper part of the evaporator, the second area is located at the lower part of the evaporator, the first fan is an axial flow fan, and the second fan is a centrifugal fan.
Further, the control module 23 is further configured to:
and recognizing that the air conditioner is in heating operation, and increasing the rotating speed of the fan corresponding to the higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of the fan corresponding to the lower temperature area in the first temperature and the second temperature.
It should be understood that the above-mentioned apparatus is used for executing the method in the above-mentioned embodiments, and the implementation principle and technical effect of the apparatus are similar to those described in the above-mentioned method, and the working process of the apparatus may refer to the corresponding process in the above-mentioned method, and is not described herein again.
To sum up, the technical solution in the embodiment of the present application at least has the following technical effects or advantages:
1. when the air conditioner is in a refrigeration running state, if a lower-temperature area exists on the evaporator, the rotating speed of a fan corresponding to the lower-temperature area is increased, so that the lower-temperature area can absorb more heat, the temperature of the lower-temperature area is increased, the risk of continuously reducing the temperature of the lower-temperature area is reduced, the phenomenon that the evaporator is frosted is avoided, and the evaporator can be continuously in a better working state.
2. The rotating speed of the fan to be adjusted is increased according to the preset frequency, so that the rotating speed of the fan can be stably changed, and the stability of the air conditioner is improved.
3. When the air conditioner is in a heating operation state, when the temperature difference between the first area and the second area on the evaporator is large, the rotating speed of the fan is changed, so that the air outlet temperature of the air conditioner is relatively uniform, and the comfort level of an indoor environment is improved.
In order to implement the above embodiments, the present application also provides an air conditioner, as shown in fig. 7, including the control device 200 of the air conditioner in the above embodiments.
In order to implement the above embodiments, the present application further provides an electronic device, as shown in fig. 8, the electronic device 300 includes a memory 31, a processor 32; wherein the processor 32 runs a program corresponding to the executable program code by reading the executable program code stored in the memory 31 for implementing the respective steps of the above method.
In order to implement the method of the above embodiment, the present invention also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the method of the above embodiment.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (11)

1. The control method of the air conditioner is characterized in that the air conditioner comprises an evaporator, a first fan and a second fan, wherein the first fan corresponds to a first area on the evaporator, and the second fan corresponds to a second area on the evaporator;
the method comprises the following steps:
recognizing that the air conditioner is in a cooling operation;
respectively acquiring a first temperature of the first area and a second temperature of the second area, and recognizing that an absolute temperature difference value between the first temperature and the second temperature is greater than a first preset difference value;
and identifying a lower temperature area in the first temperature and the second temperature, taking a fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated.
2. The control method according to claim 1, wherein the increasing the rotation speed of the fan to be adjusted comprises:
and increasing the rotating speed of the fan to be regulated according to a preset frequency.
3. The control method according to claim 2, wherein the increasing the rotation speed of the fan to be adjusted according to the preset frequency comprises:
and controlling the rotating speed of the fan to be regulated to increase a preset step length, and operating for a first preset time according to the increased rotating speed.
4. The control method according to claim 1, wherein the increasing the rotation speed of the fan to be adjusted comprises:
acquiring identification times for identifying that the absolute temperature difference is greater than the first preset difference;
and determining the target rotating speed of the fan to be regulated according to the current rotating speed of the fan to be regulated and the identification times, wherein the target rotating speed is greater than the current rotating speed.
5. The control method according to claim 1, characterized by further comprising:
identifying that the absolute temperature difference is less than or equal to the first preset difference;
and controlling the first fan and the second fan to operate for a second preset time according to the current rotating speed, and returning to the step of identifying the first temperature and the second temperature.
6. The control method according to claim 1, wherein the first region is located at an upper portion of the evaporator, the second region is located at a lower portion of the evaporator, and the first fan is an axial flow fan and the second fan is a centrifugal fan.
7. The control method according to any one of claims 1 to 6, characterized by further comprising:
and recognizing that the air conditioner is in heating operation, and increasing the rotating speed of a fan corresponding to a higher temperature area in the first temperature and the second temperature, or reducing the rotating speed of a fan corresponding to a lower temperature area in the first temperature and the second temperature.
8. A control device of an air conditioner is characterized in that the air conditioner comprises an evaporator, a first fan and a second fan, wherein the first fan corresponds to a first area on the evaporator, and the second fan corresponds to a second area on the evaporator;
the device comprises:
the identification module is used for identifying that the air conditioner is in refrigerating operation;
the acquisition module is used for respectively acquiring a first temperature of the first area and a second temperature of the second area and recognizing that an absolute temperature difference value between the first temperature and the second temperature is greater than a first preset difference value;
and the control module is used for identifying a lower temperature area in the first temperature and the second temperature, taking the fan corresponding to the lower temperature area as a fan to be regulated, and increasing the rotating speed of the fan to be regulated.
9. An air conditioner characterized by comprising the control device of the air conditioner as claimed in claim 8.
10. An electronic device comprising a memory, a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, for implementing the control method of the air conditioner according to any one of claims 1 to 7.
11. A computer-readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the control method of an air conditioner according to any one of claims 1 to 7.
CN201911206762.6A 2019-11-29 2019-11-29 Air conditioner and control method and device thereof Pending CN110848887A (en)

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